Finding the Fourth Proportional to 138,111,702.24, 190,594,165.68 and 76,232,057.52
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Solution
The fourth proportional to 138,111,702.24, 190,594,165.68 and 76,232,057.52 is: 105,200,248.53
Step by Step Solution
- Step 1: Write the proportion equation
138,111,702.24 : 190,594,165.68 = 76,232,057.52 : x - Step 2: Convert to fraction form
138,111,702.24/190,594,165.68 = 76,232,057.52/x - Step 3: Cross multiply
138,111,702.24x = 190,594,165.68 × 76,232,057.52 - Step 4: Simplify right side
138,111,702.24x = 14,529,385,401,094,170 - Step 5: Solve for x
x = 14,529,385,401,094,170/138,111,702.24 - Step 6: Final answer
x = 105,200,248.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.